Production system and production method of microfiber glass wool
阅读说明：本技术 一种微纤维玻璃棉的生产系统及其生产方法 (Production system and production method of microfiber glass wool ) 是由 李庆海 刘琛 于 2019-11-28 设计创作，主要内容包括：本发明公开了一种微纤维玻璃棉的生产系统及其生产方法,生产系统包括熔化窑炉、燃料气气源、第一鼓风机、拉丝漏板、吹棉装置、第二鼓风机、收棉装置和控制器；生产方法包括以下步骤：(1)加热融化；(2)拉丝；(3)吹棉。有益效果：本发明结构简单,易实现,且实现了自动化控制功能,保证了玻璃棉叩解度的稳定性,进而保证了所生产的玻璃棉的质量稳定；保证其喷吹出的火焰气流的压力稳定,进而降低了产品玻璃棉内的渣球含量,提高了玻璃棉的质量；减少了燃料气的使用量,减少了电能消耗,降低了生产成本。(The invention discloses a production system and a production method of microfiber glass wool, wherein the production system comprises a melting kiln, a fuel gas source, a first air blower, a wire drawing bushing plate, a cotton blowing device, a second air blower, a cotton collecting device and a controller; the production method comprises the following steps: (1) heating and melting; (2) drawing wires; (3) and (5) blowing cotton. Has the advantages that: the device has a simple structure, is easy to realize, realizes an automatic control function, ensures the stability of the beating degree of the glass wool, and further ensures the stable quality of the produced glass wool; the pressure stability of flame airflow blown out by the glass wool spraying machine is ensured, so that the slag ball content in the glass wool product is reduced, and the quality of the glass wool is improved; the consumption of fuel gas is reduced, the power consumption is reduced, and the production cost is reduced.)
1. A microfiber glass wool production system is characterized by comprising a melting kiln, a fuel gas source, a first air blower, a wire drawing bushing plate, a cotton blowing device, a second air blower, a gas mixing main pipe, a cotton collecting device and a controller, wherein gas outlets of the fuel gas source and the first air blower are communicated with a gas inlet of a combustion chamber of the melting kiln through a pipeline; a temperature sensor is arranged in the melting kiln; the wire drawing bushing plate is arranged at a liquid outlet of the melting kiln, and the cotton blowing device is arranged at a discharge outlet of the wire drawing bushing plate; the gas outlets of the fuel gas source and the second blower are respectively communicated with the gas inlet of the gas mixing main pipe through branch pipes; a pressure sensor is arranged on the gas mixing main pipe; a third flow sensor and a first regulating valve are arranged on a branch pipe between the fuel gas source and the gas mixing main pipe; a fourth flow sensor and a second regulating valve are arranged on a branch pipe between the second blower and the gas mixing main pipe; the air outlet of the air mixing header pipe is communicated with the air inlet of the cotton blowing device; the cotton collecting device is arranged at a discharge port of the cotton blowing device; the signal output ends of the first flow sensor, the second flow sensor, the temperature sensor, the pressure sensor, the third flow sensor and the fourth flow sensor are all in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input ends of the first electromagnetic valve, the second electromagnetic valve, the first regulating valve and the second regulating valve respectively.
2. A microfiber glass wool production system according to claim 1, wherein said cotton collecting device comprises a plurality of serially arranged cyclones, a cotton collecting machine, a baler and a water mist dust removing device; a feed inlet of the first cyclone separator is communicated with a feed delivery pipe, the feed inlet of the feed delivery pipe is opposite to the discharge outlet of the cotton blowing device, and an air outlet of each cyclone separator is communicated with the feed inlet of the next cyclone separator through a pipeline; the air outlet of the last cyclone separator is communicated with the air inlet of the water mist dust removal device through a pipeline; the discharge port of each cyclone separator is communicated with the corresponding cotton collecting machine through a pipeline, and a cotton storage bin is communicated with the discharge port of each cotton collecting machine; and the discharge port of each cotton storage bin is provided with the packer.
3. The system for producing microfiber glass wool according to claim 1, further comprising a bin, wherein a discharge port of the bin is communicated with a feed port of the melting kiln through a discharge pipe; a first electric gate valve is arranged at the discharge port of the storage bin; a weighing sensor is arranged on the discharge pipe; a second electric gate valve is arranged at the discharge port of the discharge pipe; a liquid level sensor is arranged in the melting kiln; the weighing sensor with level sensor's signal output part all with the signal input part of controller is through signal connection, the signal output part of controller respectively with the signal input part of first electronic push-pull valve with the electronic push-pull valve of second is through signal connection.
4. A method for producing microfibrous glass wool according to any one of claims 1 to 3, characterized in that it comprises the following steps: (1) heating and melting; (2) drawing wires; (3) blowing cotton;
(1) heating for melting: adding a certain amount of glass blocks into a melting kiln, introducing fuel gas and combustion-supporting gas into a combustion chamber of the melting kiln, igniting and heating to melt the glass blocks in the melting kiln into liquid;
(2) drawing: and (3) drawing the liquid obtained in the step (1) through a wire drawing bushing to obtain fine glass filaments.
(3) Blowing cotton: and (3) introducing the mixed gas of the fuel gas and the combustion-supporting gas into a cotton blowing device, igniting to form flame, blowing the glass fiber obtained in the step (2) by the formed flame, and blowing the glass fiber into glass cotton.
5. A production method of microfiber glass wool according to claim 4, wherein a glass gob is added into the melting furnace in the step (1): the liquid level sensor in the melting furnace feeds back a detected liquid level signal of the molten glass liquid to the controller, when the liquid level of the molten glass liquid is detected to be lower than a set value, the controller controls the first electric gate valve to be opened, a glass material block in the storage bin falls into the discharge pipe, and the weighing sensor feeds back a detected weight signal of the glass material block to the controller; when the weight of the glass material block is detected to reach a set value, the controller controls the first electric gate valve to be closed, and the second electric gate valve to be opened; putting the glass material blocks in the discharge pipe into a melting furnace; or when the glass material block in the discharging pipe is detected to be thrown completely, the controller controls the first electric flashboard valve to be opened, the second electric flashboard valve to be closed, the glass material block in the storage bin continuously falls into the discharging pipe, the operations are repeated until the liquid level sensor detects that the liquid level of the molten glass liquid reaches a set value, the controller controls the first electric flashboard valve and the second electric flashboard valve to be closed, and the weighing sensor stops working.
6. A microfiber glass wool production method according to claim 4, wherein the formed glass wool is blown to each cyclone in sequence by the blowing in the step (3) for sorting and collection, and the glass wool collected by each cyclone is compressed once by a corresponding cotton harvester and then is compressed and packaged by a packaging machine to form finished products of different grades; and the gas discharged by the last cyclone separator is discharged after being dedusted by the water mist dedusting device.
7. A production method of microfiber glass wool according to claim 4, wherein a flow ratio set value of fuel gas and combustion-supporting gas fed into a melting furnace is preset in a controller to be 1: 6; the upper limit temperature value 1100 ℃ and the lower limit temperature value 1000 ℃ in the melting kiln are preset in the controller; the first flow sensor and the second flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the temperature sensor transmits the detected temperature value of the glass liquid in the melting kiln to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be large and the second electromagnetic valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be small and the second electromagnetic valve to be adjusted to be large; when the detected temperature value is lower than the lower limit temperature value by 1000 ℃, the controller simultaneously controls the first electromagnetic valve to be increased and the second electromagnetic valve to be increased; or when the detected temperature value is higher than the upper limit temperature value of 1100 ℃, the controller simultaneously controls the first electromagnetic valve to be reduced and the second electromagnetic valve to be reduced.
8. The method for producing microfiber glass wool according to claim 4, wherein a flow ratio set value of fuel gas to combustion-supporting gas fed into the blowing device is preset in the controller to be 1:7, and a pressure set value of the mixed gas is 0.4 MPa; the third flow sensor and the fourth flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the pressure sensor transmits the detected pressure value of the mixed gas to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be large and the second regulating valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be small and the second regulating valve to be adjusted to be large; when the detected pressure value of the mixed gas is lower than the set value of 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be increased; or when the detected pressure value of the mixed gas is higher than the set value by 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be reduced.
The technical field is as follows:
the invention relates to the technical field of glass wool production, in particular to a production system and a production method of microfiber glass wool.
Background art:
the glass wool is inorganic fiber and is widely applied to the fields of petroleum pipeline oil transportation and natural pipeline gas transportation due to the characteristics of good forming, small volume density, low thermal conductivity, good heat insulation, sound absorption, corrosion resistance and good chemical property. At present, the main production method of microfiber glass wool is a flame blowing method.
At present, a glass material block is melted into glass solution by a furnace through a flame blowing method, and then the glass solution is blown by flame to form glass fiber, so that the method is suitable for producing glass wool with the average diameter of less than 2.0um and is widely used; however, the flame blowing method has the following problems: 1. at present, the temperature of a glass material block melted by a kiln is detected by a thermocouple instrument, the detected data can be displayed on the instrument, the change of the data is observed manually at any time, the fuel gas flow and the combustion-supporting gas flow are regulated, the condition of regulation lag easily occurs, the temperature in the kiln is unstable, the wiredrawing is unstable, the stability of the beating degree of glass wool is poor, and the quality of the glass wool is unstable; 2. during flame blowing and wire drawing, manual adjustment is carried out by manually observing the data of fuel gas flow and combustion-supporting gas flow displayed on a flow instrument, but the problem that the fuel gas flow and the combustion-supporting gas flow cannot be adjusted in time easily occurs when the fuel gas flow and the combustion-supporting gas flow are adjusted manually, so that the blown flame gas flow is unstable, the content of slag balls in the glass wool product is high, and the quality of the glass wool is influenced; 3. because the flow of the fuel gas injected by the heating kiln and the flame is adjusted manually, the problem of adjustment lag can occur, the consumption of the fuel gas is large, waste is caused, and the production cost is increased; 4. at present, the blown glass wool needs to be sent to a collecting device for collection under the action of a draught fan, so that the electric energy consumption is high, and the production cost is increased.
The invention content is as follows:
the first purpose of the invention is to provide a production system of microfiber glass wool, which has a simple structure and is easy to realize.
The second purpose of the invention is to provide a production method of microfiber glass wool, which realizes automatic control and improves the quality of the glass wool.
The invention discloses a microfiber glass wool production system, which comprises a melting kiln, a fuel gas source, a first air blower, a wire drawing bushing plate, a cotton blowing device, a second air blower, a gas mixing main pipe, a cotton collecting device and a controller, wherein gas outlets of the fuel gas source and the first air blower are communicated with a gas inlet of a combustion chamber of the melting kiln through a pipeline; a temperature sensor is arranged in the melting kiln; the wire drawing bushing plate is arranged at a liquid outlet of the melting kiln, and the cotton blowing device is arranged at a discharge outlet of the wire drawing bushing plate; the gas outlets of the fuel gas source and the second blower are respectively communicated with the gas inlet of the gas mixing main pipe through branch pipes; a pressure sensor is arranged on the gas mixing main pipe; a third flow sensor and a first regulating valve are arranged on a branch pipe between the fuel gas source and the gas mixing main pipe; a fourth flow sensor and a second regulating valve are arranged on a branch pipe between the second blower and the gas mixing main pipe; the air outlet of the air mixing header pipe is communicated with the air inlet of the cotton blowing device; the cotton collecting device is arranged at a discharge port of the cotton blowing device; the signal output ends of the first flow sensor, the second flow sensor, the temperature sensor, the pressure sensor, the third flow sensor and the fourth flow sensor are all in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input ends of the first electromagnetic valve, the second electromagnetic valve, the first regulating valve and the second regulating valve respectively.
Furthermore, the cotton collecting device comprises a plurality of cyclone separators, a cotton collecting machine, a packaging machine and a water mist dust removing device which are arranged in series; a feed inlet of the first cyclone separator is communicated with a feed delivery pipe, the feed inlet of the feed delivery pipe is opposite to the discharge outlet of the cotton blowing device, and an air outlet of each cyclone separator is communicated with the feed inlet of the next cyclone separator through a pipeline; the air outlet of the last cyclone separator is communicated with the air inlet of the water mist dust removal device through a pipeline; the discharge port of each cyclone separator is communicated with the corresponding cotton collecting machine through a pipeline, and a cotton storage bin is communicated with the discharge port of each cotton collecting machine; and the discharge port of each cotton storage bin is provided with the packer.
Further, the device also comprises a bin, wherein a discharge hole of the bin is communicated with a feed inlet of the melting kiln through a discharge pipe; a first electric gate valve is arranged at the discharge port of the storage bin; a weighing sensor is arranged on the discharge pipe; a second electric gate valve is arranged at the discharge port of the discharge pipe; a liquid level sensor is arranged in the melting kiln; the weighing sensor with level sensor's signal output part all with the signal input part of controller is through signal connection, the signal output part of controller respectively with the signal input part of first electronic push-pull valve with the electronic push-pull valve of second is through signal connection.
In another aspect of the present invention, a method for producing microfiber glass wool is also disclosed, which comprises the following steps: (1) heating and melting; (2) drawing wires; (3) blowing cotton;
(1) heating for melting: adding a certain amount of glass blocks into a melting kiln, introducing fuel gas and combustion-supporting gas into a combustion chamber of the melting kiln, igniting and heating to melt the glass blocks in the melting kiln into liquid;
(2) drawing: and (3) drawing the liquid obtained in the step (1) through a wire drawing bushing to obtain fine glass filaments.
(3) Blowing cotton: and (3) introducing the mixed gas of the fuel gas and the combustion-supporting gas into a cotton blowing device, igniting to form flame, blowing the glass fiber obtained in the step (2) by the formed flame, and blowing the glass fiber into glass cotton.
Further, adding a glass frit block into the melting furnace in the step (1): the liquid level sensor in the melting furnace feeds back a detected liquid level signal of the molten glass liquid to the controller, when the liquid level of the molten glass liquid is detected to be lower than a set value, the controller controls the first electric gate valve to be opened, a glass material block in the storage bin falls into the discharge pipe, and the weighing sensor feeds back a detected weight signal of the glass material block to the controller; when the weight of the glass material block is detected to reach a set value, the controller controls the first electric gate valve to be closed, and the second electric gate valve to be opened; putting the glass material blocks in the discharge pipe into a melting furnace; or when the glass material block in the discharge pipe is detected to be completely fed, the controller controls the first electric flashboard valve to be opened and the second electric flashboard valve to be closed, the glass material block in the bin continuously falls into the discharge pipe, the operation is repeated, and the glass material block in the bin is fed into the melting kiln in multiple times and in equal quantity; and when the liquid level sensor detects that the liquid level of the molten glass reaches a set value, the controller controls the first electric gate valve and the second electric gate valve to be closed, and the weighing sensor stops working, namely stops feeding into the melting kiln.
Further, the formed glass wool is blown to each cyclone separator in sequence through the blowing in the step (3) for separation and collection, and the glass wool collected by each cyclone separator is compressed once by a corresponding cotton collecting machine and then is compressed and packaged by a packaging machine to form finished products with different grades; and the gas discharged by the last cyclone separator is discharged after being dedusted by the water mist dedusting device.
Further, a preset value of the flow ratio of the fuel gas to the combustion-supporting gas which are sent into the melting kiln is 1:6 in the controller; the upper limit temperature value 1100 ℃ and the lower limit temperature value 1000 ℃ in the melting kiln are preset in the controller; the first flow sensor and the second flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the temperature sensor transmits the detected temperature value of the glass liquid in the melting kiln to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be large and the second electromagnetic valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:6, the controller controls the first electromagnetic valve to be adjusted to be small and the second electromagnetic valve to be adjusted to be large; when the detected temperature value is lower than the lower limit temperature value by 1000 ℃, the controller simultaneously controls the first electromagnetic valve to be increased and the second electromagnetic valve to be increased; or when the detected temperature value is higher than the upper limit temperature value of 1100 ℃, the controller simultaneously controls the first electromagnetic valve to be reduced and the second electromagnetic valve to be reduced.
Further, a flow ratio set value of fuel gas and combustion-supporting gas which are sent into the cotton blowing device is preset in the controller to be 1:7, and a pressure set value of mixed gas is 0.4 MPa; the third flow sensor and the fourth flow sensor transmit the detected fuel gas flow value and the combustion-supporting gas flow value to the controller, and the pressure sensor transmits the detected pressure value of the mixed gas to the controller; the controller carries out logic judgment, and when the flow ratio value of the fuel gas to the combustion-supporting gas is detected to be lower than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be large and the second regulating valve to be adjusted to be small; or when the flow ratio value of the fuel gas and the combustion-supporting gas is detected to be higher than a set value of 1:7, the controller controls the first regulating valve to be adjusted to be small and the second regulating valve to be adjusted to be large; when the detected pressure value of the mixed gas is lower than the set value of 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be increased; or when the detected pressure value of the mixed gas is higher than the set value by 0.4MPa, the controller simultaneously controls the first regulating valve and the second regulating valve to be reduced.
The invention has the advantages that: 1. the device has a simple structure, is easy to realize, realizes an automatic control function, controls the flow of fuel gas and combustion-supporting gas through the controller, does not need manual regulation, ensures that the temperature in the melting kiln is kept stable and uniform, avoids the phenomenon of unstable wire drawing, ensures the stability of the beating degree of glass wool, and further ensures the stable quality of the produced glass wool; 2. the flow of fuel gas and combustion-supporting gas entering the cotton blowing device is controlled by the controller, so that the pressure stability of flame airflow blown by the controller is ensured, the slag ball content in the glass wool product is reduced, and the quality of the glass wool is improved; 3. the flow of the fuel gas is controlled by the controller, so that the fuel gas is fully utilized, the use amount of the fuel gas is reduced, the waste of the fuel gas is avoided, and the production cost is further reduced; 4. when the cotton blowing device blows, the flame airflow blows the glass fibers into the glass cotton, and meanwhile, the glass cotton can be blown into the cotton receiving device, a draught fan is not needed, the electric energy consumption is reduced, and the production cost is reduced.
Description of the drawings:
fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.
Fig. 2 is a control block diagram of the present invention.
The device comprises a melting kiln 1, a
The specific implementation mode is as follows:
the present invention will be described in further detail by way of examples with reference to the accompanying drawings.